<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<canvas id="canvas" width="800" height="400" style="float:left;border:1px solid #c3c3c3"></canvas>
		<script type="text/javascript">
			var canvas=document.getElementById("canvas");
			var cxt=canvas.getContext("2d");
			cxt.fillStyle="#FF0000";
			cxt.fillRect(0,0,150,75);
		</script>
	</body>
</html>
